• Journal of Korean language education
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• v.28 no.3
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• pp.53-83
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• 2017

The goal of this study is to examine whether the genre characteristics of newspaper articles are appropriately reflected in Korean language textbooks. For the purpose of this study, two corpora were built with 17 textbook articles and 60 newspaper articles respectively. The average sentence length and frequency of vocabulary in each corpus were measured. It was found that the sentences of articles in textbooks tended to have longer sentence length and more complicated structures than the articles in newspapers. For instance, sentences in the textbook articles had more verbal endings, such as conjunctive and transforming endings. On the other hand, in case of vocabulary representing 'timeliness', there was a high frequency of adverbs and nouns which were related to year, month, and time in actual articles, while it is found to be very limited in textbooks. Also, typical translative styles such as '-ko itta', '-e ttareumyun' were more prominent in textbooks than in newspaper articles. In the case of abbreviated and omitted form of particles, this was a characteristic that appeared only in actual articles because of the constraint of space. It is significant that this paper offers suggestions for the development of reading materials for Korean language education by revealing that the genre typology of actual newspaper articles is not adequately reflected in current textbooks.

• Journal of Korean Library and Information Science Society
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• v.49 no.4
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• pp.187-218
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• 2018

The purpose of this study is to develop a curriculum for the Training of Specialized Librarians who have both practical and theoretical knowledge in order to enhance the professionalism of reading instruction required by librarians. For this purpose, We developed a training librarian course for reading instruction through a data collecting method such as literature study, FGI, and Delphi analysis. As a result, the curriculum for reading instruction librarians was organized with 17 modules totaling 267 hours. Level courses are in the order of Basic-Deepening-Advanced. The 8 basic courses are all in cyber education format, and the total of 74 hours is completed. The 5 deepening courses consist of three sets of courses and two courses 100 hours, and the 4 advanced courses are all in the form of integrated education, taking 93 hours in total.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.26 no.11
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• pp.1706-1712
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• 2022

Recently, the safety of chemical substances has gained attention due to incidents occurring in petrochemical industrial complexes, such as gas leaks and fires. In particular, industrial complexes in Ulsan and Yeosu (South Korea) are valuable as they significantly contribute to the petrochemical industry, but accidents may occur due to chemical leakage. Therefore, in this study, sensor nodes are configured at an interval of 20 [m] based on outdoor facilities standards to respond to chemical accidents, and exposure consideration of 8 h (TWA) and 15 min (STEL) are proposed in TLVs. The proposed system pre-processes data collected in multi-hop communication at a cycle of 0.6-0.75 [s] using Python and stores it in the MySQL database through SQL and a real-time remote monitoring system that updates the stored data once every 5 s is implemented by linking MySQL and Grafana.

• Lettere Italiane
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• no.36
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• pp.73-97
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• 2012

Danubio è un 'diario di viaggio' dalle sorgenti del fiume fino al Mare Nero, attraverso città importantissime o paesi, ampi paesaggi, popoli, costumi, letterature e lingue diverse. Un itinerario fra romanzo e saggio che racconta la cultura come esperienza esistenziale e ricostruisce a mosaico le civiltà di Mitteleuropa rintracciandone il profilo nei segni della grande storia e nelle effimere tracce della vita quotidiana. L'idea di Mitteleuropa nasce a meta dell'Ottocento per indicare un spazio politico e soprattutto economico egemonizzato dai tedeschi e dagli ungheresi, che piu tardi diventa il simbolo di programmi nazionalisti tedeschi e che poi diventa una dimensione sovranazionale, qualcoca di comune e sottostante a tutte le diverse nazionalità e culture di tante realtà diverse. La Mitteleuropa 'hinternazionale', oggi idealizzata quale armonia di popoli diversi, è stata una realtà dell'impero absburgico, nella sua ultima stagione, una tolleranzte convivenza comprensibiilmente rimpianta dopo la sua fine, anche per il confronto con la barbarie totalitaria che le è succeduta, fra le due guerre mondiali, nello spazio danubiano. L'arte absburgica di governo non vuole imporre una rigida unità ai vari popoli, bensi lasciarli sussistere e convivere nella loro eterogeneità. Secondo Claudio Magris, il Danubio è il simbolo della frontiera, perché il Danubio è un fiume che passa attraverso tante frontiere, è quindi simbolo della necessità e della difficoltà di attraversare frontiere, non soltanto nazionali, politiche, sociali, ma anche psicologiche, culturali, religiose. La nostra identità è sempre fragile e noi dobbiamo accettare questa fragilità, poiché mutiamo nel tempo. L'identità fatta di mescolanze, di sottrazioni e di elisioni non fosse soltanto il destino degli epigoni danubiani, bensì una condizione storica generale, l'esistenza di ogni individuo. Magris dice che siccome nessun popolo, nessuna cultra come nessun individuo sono privi di colpe storiche, rendersi impietosamente conto dei difetti e delle oscurità di tutti, e di se stessi, può essere una proficua premessa di convivenza civile e tollerante. Magris dice che la letteratura è di perse stessa una frontiera, una soglia, una zona sul limitare e insegna a varcare i limiti, ma consiste nel tracciare dei limiti, senza i quali non puo esistere e nemmeno la tensione a superarli per raggiungere qualcosa di piu alto e di piú umano.

• Journal of the Korean Institute of Gas
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• v.20 no.3
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• pp.46-51
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• 2016

Natural gas liquefaction process which spends a huge amount energy is operated under cryogenic conditions. Thus, many researchers have studied on minimizing energy consumption of LNG plant. However, a few studied for cost optimization have performed. This study focused on the cost analysis for the single mixed refrigerant (SMR) process, one of the simplest natural gas liquefaction process, which has different capacity. The process capacity is increased from 1 million ton per annum (MTPA) to 2.5 MTPA by 0.5 MTPA steps. According to the increase of plant size, only flow rate of natural gas and mixed refrigerant are increased and other operating conditions are fixed. Aspen Economic Evaluator(v.8.7) is used for the cost analysis and six tenths factor rule is applied to obtain multi stream heat exchanger cost data which is not supplied by Aspen Economic Evaluator. Moreover, the optimal plant sizes for different sizes of gas wells are found as the result of applying plant cost to small scale gas wells, 20 million ton (MT), 40 MT, and 80 MT. Through this cost analysis, the foundation is built to optimize LNG plant in terms of the cost.

• Journal of Soil and Groundwater Environment
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• v.14 no.1
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• pp.44-50
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• 2009

The occurrence of endocrine disrupting compounds (EDCs), chemicals that interfere with human hormone system, are increasing in the freshwater, waste water and subsurface as well. In this study, we determined the reactivity of three EDCs in the presence of birnessite. In aqueous phase, bisphenol A, 2,4-dichlorophenol and 17${\beta}$-estradiol, which possesses phenoxy-OH, were very rapidly transformed by birnessite: up to 99% of initial concentrations (50 mg/L for bisphenol A, 100mg/L for 2,4-dichlorophenol, and 1.5mg/L for 17${\beta}$-estradiol) were destroyed within 60 minutes. Especially, bisphenol A was the most reactive chemical, disappearing by 99% in a few minutes. The reaction occurred on the surface of birnessite, showing a linear increase of first-order kinetic constants with the increase of the surface area of birnessite. In soil slurry phase, the reactivity of birnessiteto EDCs was faster than in aqueous phase probably due to the cross coupling reaction of phenoxy radicals with soil organic matter. Considering the rapid transformation of the EDCs in the both phases, this oxidative cross coupling reaction mediated by birnessite would be an effective solution for the remediation of EDCs in environmental media, especially in soil.

• Journal of the Korean Society of Food Science and Nutrition
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• v.32 no.5
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• pp.728-732
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• 2003

Each 3 g of five different commercial Gal Geun Tang extractive granules was mixed with 97 $m\ell$ of methanol or water for 1.5 hour at room temperature and filtered through a Whatman No. 1 filter paper, and the filtrate was used to determine antioxidant activity. Antioxidative abilities of each extracts were compared by measuring total phenol content (TPC), electron donating ability (EDA), inhibition of lipid peroxidation, and reducing power Average TPC of methanol extracts from five samples was 0.14 mM within the range of 0.07~0.23 mM, while that of water extracts was 0.23 mM, higher than that of methanol extracts. Average EDA of the methanol extracts was 85.54%, higher than that of the 0.1% BHT (72.26%). Average EDA values of the water extracts were 69.7%. Average value of inhibition against lipid peroxidation of the methanol extracts was 26.95%, and the range of five samples was 17.02~37.36%. Inhibition against lipid peroxidation of the water extracts showed relatively low value, 18.62%. Reducing power of the methanol extracts was 0.77 unit, which was 73.1% of 0.1% BHT, and that of water extracts was 0.88 unit. These results indicate that commercial Gal Geun Tang shows high antioxidant ability, though there are some differences depending on extract solvent and manufacturing company.

• Journal of the HCI Society of Korea
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• v.11 no.3
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• pp.13-22
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• 2016

Vocal and instrument apprenticeship in applied music has been accepted without significant changes since the introduction of applied music education to South Korea. Few discussions or suggestions about other types of teaching than 'one-to-one lessons' or 'education of apprentices by assigned specialists' have been made. Since the introduction of applied music education to South Korea late in the 1980s, the CAI(Computer Aided Instruction) courseware development for applied music education has not actively been under way. The area of applied music has also made rapid progress in terms of music producing or music videos using computers. Actually, the improved computer program is not positively applied to applied music education. This study aimed to present learning methods using the improved functions of music production softwares to improve the traditional apprenticeship system in the area of vocal training in applied music. In particular, it used the technique of auto tune-pitch shift developed for interval correction in sound sources. By giving real-time feedbacks concerning intervals or monitors visually after recording, it intended to present a learning method to induce improvement in accuracy of intervals in vocal training. This study is expected to present a method that allows vocal trainers to overcome temporal and spatial limitations in applied music and make their vocal training more efficient.

• Journal of the Korean Chemical Society
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• v.38 no.5
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• pp.351-358
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• 1994

The spectrophotometric determination of trace selenium(Ⅳ) using its catalytic reaction has been studied in aqueous solutions. The catalytic reaction of phenylhydrazine hydrochloride with selenium(Ⅳ) in an acidic aqueous medium produces benzenediazonium ion which will be converted into a red-coloured azo dye by coupling with H-acid(8-amino-1-naphtol-3,6-disulfonic acid disodium salt). For the reaction, the experimental conditions such as amounts of the reagents and pH of the sample solutions were optimized. After 15 ml of the sample solution was treated with 1 ml of 0.1 M EDTA solution to mask $Fe^{3+}$, etc., 1 ml of 0.06 M phenylhydrazine hydrochloride, 1 ml of 0.02 M H-acid, and 3 ml of 0.3 M-$KClO_3$ were added into the solution, sequentially. The solution was adjusted to pH 1.4 with HCl. After it was heated in a steam bath for 30 minutes, the solution was cooled down to a room temperature and then diluted to 25 ml with deionized distilled water. A blank solution for the absorbance measurement was prepared from the deionized water. The absorbance was measured at 527 nm. Using the above procedure, the trace amount of selenium was determined in natural waters such as tap, river and pond waters by a standard curve method and recoveries of Se spiked to samples were also obtained. From the recoveries of 104 to 111%, it could be concluded that this method was applicable to the quantitative determination of ng/ml level of selenium in natural waters.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.16 no.4
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• pp.108-116
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• 2002

This paper presents the measurements and evaluation of voltage waveforms due to human electrostatic discharge(ESD). The principle of operation and design rule of a new device for measuring the ESD fast transient voltages with very fast rise time were described. Peak values and rise time of ESD voltages derived from a charged human body under a variety of experimental conditions were examined. The frequency bandwidth of the proposed voltage measuring system ranges from DC to 400[㎒]. The ESD voltage waveform is nearly equal to the ESD current waveform and the peak amplitude of ESD current waveform is roughly proportional to the ESD voltage in each experimental conditions. A rapid approach results in a discharge voltage with a faster initial rise time than for a slow approach. The voltages caused by direct finger ESDs have an initial slope with a relatively long, 10∼30[ns] rise time, but the amplitude is small. On the other hand, the voltages caused by direct hand/metal ESDs have a steep initial s1ope with 1 ∼3[ns] rise time, but an initial spike is very big. As a consequence, it was found that the ESD voltage and current waveforms strongly depend on the approach speed and material of intruder. These measurement results would be useful to design the ESD protective devices.